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IB Biology SL D1.2.6 Roles in Translation Questions

Explore how mRNA codons, tRNA amino-acid delivery and ribosome positioning coordinate translation in IB Biology SL D1.2.6.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • Explain that mRNA provides codons and tRNA carries a specific activated amino acid with a complementary anticodon.
  • Explain how ribosomes hold mRNA and tRNAs in position so adjacent amino acids can form peptide bonds.
  • Use translation diagrams or role descriptions to identify mRNA, tRNA, codons, anticodons, ribosome sites and the growing polypeptide.

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Study D1.2.6—Roles in translation conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Biology SL D1.2.6 Roles in Translation Questions question 1

[Maximum number: 2]

The diagram represents the synthesis of proteins in the cytoplasm of a cell.

Figure for Question IB Biology SL D1.2.6 Roles in Translation Questions question 1 — IB Biology SL

Identify X and Y.

X:

Y:

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